BST-2/tetherin: a new component of the innate immune response to enveloped viruses.

BST-2/tetherin: a new component of the innate immune response to enveloped viruses.
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DOI:
10.1016/j.tim.2010.06.010
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发表时间:
2010-09
影响因子:
15.9
通讯作者:
Guatelli JC
Guatelli JC
中科院分区:
生物学1区
文献类型:
--
作者:
Evans DT;Serra-Moreno R;Singh RK;Guatelli JC

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干扰素诱导的跨膜蛋白BST-2(CD 317,tetherin)直接将完全形成的包膜病毒颗粒固定在产生它们的细胞上,抑制它们的传播。BST-2抑制逆转录病毒、丝状病毒、沙粒病毒和疱疹病毒家族的成员。这些病毒编码多种蛋白质以降解BST-2和/或将其从其在细胞表面的作用位点引导。病毒拮抗作用使BST-2受到正向选择,导致物种特异性差异,这对猴免疫缺陷病毒(SIV)向人类传播构成了障碍。当HIV-1的Vpu蛋白获得作为BST-2拮抗剂的活性时,HIV-1就跨越了这一屏障。在这里,我们回顾了这种新的宿主-病原体关系,并讨论了它对灵长类慢病毒进化的影响以及艾滋病毒大流行的起源。
The interferon-inducible, transmembrane protein BST-2 (CD317, tetherin) directly holds fully formed enveloped virus particles to the cells that produce them, inhibiting their spread. BST-2 inhibits members of the retrovirus, filovirus, arenavirus, and herpesvirus families. These viruses encode a variety of proteins to degrade BST-2 and/or direct it away from its site of action at the cell surface. Viral antagonism has subjected BST-2 to positive selection, leading to species-specific differences that presented a barrier to the transmission of simian immunodeficiency viruses (SIVs) to humans. This barrier was crossed by HIV-1 when its Vpu protein acquired activity as a BST-2 antagonist. Here, we review this new host-pathogen relationship and discuss its impact on the evolution of primate lentiviruses and the origins of the HIV pandemic.
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